Metal-cutting apparatus



L. A. CRANDALL.

METAL CUTTING APPARATUS.

APPLICATION FILED 05026. 1919.

Patented Mar. 8, 1921.

UNITED STATES PATENT OFFICE.

Specification of Letters latent.

Patented Mat. 8, 1921.

Application flied December 26, i919. Serial Io. 847,815.

To all whom it may concern:

Be it known that I, LEONARD A. CRANDA-LL, a citizen of the United States of America, and a resident of the citg of McCook, in the county of Redwillow, tate of Nebraska, have invented certain new and useful Improvements in Metal-Cutting Apparatus, of which the following is a specification.

This invention has for its prime object the rovision of portable, simple and inexpensive means for moving an oxygenacetylene blow torch along a predetermined line when employed for cutting metal, thereby preventing irregularity in the out which inevitably occurs when the workman relies merely upon his steadiness of hand.

Referring to the perspective of the apparatus shown in the accompanying drawing, 1 indicates a threaded rod which projected through the upturned extremities of a frame 2 and rotated by crank 3 preferably having a weighted extension 4.

Said frame is provided with lugs '5 across which a pig of lead or other weight (not shown) may be placed in order to retain the apparatus in any desired'position u on the metal to be severed (as for examp e upon plate 6) and mounted u on said rod is a s eeially designed mem er comprising a threaded portion 7 and a ring 8 through which the nozzle 9 of the blow torch is inserted, said nozzle being retained within said ring by set-screw 10.

It will be understood that when the apparatus is in use' the'rear portion of the torch is supported by the workman so that the flame issuing from its nozzle will be directed vertically upon the metal to be severed substantially as illustrated and upon turning crank 3 either to right'or left the nozzle-holding member will be moved toward one or the other extremity of rod 1 along a line parallel throughout with the adiacent edge of frame 2.

Having thus fully described the construction of the apparatus and the manner of its adapted to engage use, what I'claim as new and desire to seci re b Letters- Patent is etal cutting apparatus comprising a frame having a plate adapted to rest upon the metal to e out, a threaded rod suspended above said plate "a, blow-torch, a threaded member mounte for travel upon said rod said torch and rotatable about the axis of said rod, whereby said torch may be positioned on either side of said piate, and means for turning said rod.

2. etal cutting apparatus comprising a frame, a threaded rod suspended within said frame, a blow-torch, a threaded member mounted for travel upon said rod adapted to engage said torch, means for rotating said rod, and lu extending from said frame adapted to he against the metal to be out, whereby the frame may be secured against movement.

3. Metal cutting apparatus comprising a frame havlng a'plate adapted to rest upon the metal to be cut, a'threaded rod suspended above said plate, a, blow-torch, a threaded member mountedfor travel upon said rod having an aperture for the reception of said torch and rotatable about the axis of said rod, whereb said torch may be posit1oned on either side (if said plate, means for fasten ng said torch within said aperture, and means for turning said rod.

4. Metal cutting apparatus comprising a 7 frame, a threaded rod suspended within said frame, a blow-torch, a threaded member mounted for travel upon said rod havmg an aperture for-ithe reception of said torch, means for fastening the latter within said aperture, means for rotating said rod, and lugs extending from said frame adapted to lie against the metal to be cut, whereby the frame may be secured against move ment.

LEONARD ALLEN CRANDALL. Witnesses:

Mrs. A. ANTON, Monrou L. Samoa. 

